renamed `tf.function(jit_compile=True)`.
    *   XLA can now compile MirroredStrategy: the step function passed
        to`strategy.run` can now be annoted with `jit_compile=True`.

*   `tf.distribute`:

    *   Rename `experimental_prefetch_to_device` in `tf.distribute.InputOptions`
        to `experimental_fetch_to_device` to better reflect the purpose.

idea is that functions can "delegate" checks to inner functions, // and if there's anything non-approved in the stack, the final result is // negative. Finally, we expose indicatorUnset as negative to the user, so that // we don't need to explicitly annotate fully non-approved services. //go:linkname getIndicator crypto/internal/fips140.getIndicator func getIndicator() uint8 //go:linkname setIndicator crypto/internal/fips140.setIndicator func setIndicator(uint8) const ( indicatorUnset uint8 = iota indicatorFalse...